WiFi-Controlled Air Conditioner

Controlling my Kenmore air conditioner using Alexa, Arduino, and Adafruit IO. See example video and blog post for more details.

Project Files

Main project code is located in arduino/ac_io. Uses Adafruit IO and the IRremote library.

A sketch from AnalysisIR, available here, was used to clone the power on/off button sequence from the AC unit's original IR remote. That sequence is located in data.

A rough wiring diagram drawing is included in the top-level directory. This will eventually be replaced with schematic/board files when I spin a PCB for this.

Arduino Error

I ended up having a very weird error when using IRremote together with the Adafruit IO library (probably the ESP32 timer library, specifically). I can't use a long for loop to send IR sequences without the connection to Adafruit IO crashing. The sketch arduino/timer_mwe illustrates the issue. Any suggestions are more than welcome!